<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>CSS语法</title>
    <style>
      p{
          color:tomato;
          font-size:30px;
      } 
      h1{
          color:aquamarine;
      } 
    </style>
</head>
<body>
    <h1>我是h1</h1>
    <p>今天天气真不错！</p>
</body>
</html>